These entries will automatically be deleted when you uninstall the application. When you install an application, a new registry entries will be created. Most applications today use registry to store configuration and other important data. It contains information that controls how your Windows appears and how it behaves. The Registry is a heart and soul of any Windows system. These will significantly increase the registry size and thus will slowdown your computer, because Windows will need more time to load, search, and read data from registry.

After a long period, after installing and uninstalling a lot number of applications, your Windows registry will contain a large number of obsolete entries. It also has an in-built option to restore a registry backup which we strongly advise in having one handy to restore from if you run into an issue.TweakNow RegCleaner is recommended to periodically clean your Windows registry, to keep your computer in top performance. TweakNow RegCleaner can be directed to exclude specific keys and values, and you can also ignore missing files on removable drives if desired. If satisfied with the found items, you can hit clean registry. You can exclude items, open with RegEdit, uncheck all, etc. Once you run a scan, it will list what was found grouped into sections for review. Now potentially, with numerous obsolete entries, there may be some performance issues as Windows attempts to search, load, and read data from the registry. If you are unfamiliar with the registry, don't mess with it. If you install and uninstall many apps, your registry may eventually contain obsolete entries, which in turn increases its size. The quick scan hits the essential areas, while the full scan pulls everything.

TweakNow RegCleaner has two different scans available quick and full (expert), and the results will vary depending on which you choose. TweakNow RegCleaner is designed to scan your registry to find obsolete entries and remove them quickly.

Tweaknow reg cleaner